Proposed new multiproject build

[Dain Sundstrom]

I have rewritten our multiproject build to add support for windows.  
The new goals all start with m: so as to not disrupt our current stuff. 
 Assuming everyone is happy, I would like to remove the current 
multiproject and reactor goals (and drop the m: prefix).  This is only 
a proposal, so if people don't like it I can just delete or refactor 
the goals.

Before I get to the new goals, there are a few weirdism.  I disabled 
the activemq tests as they take for ever (like 30 minutes) and 
eventually fail.  This is a hard coded disable, as maven 1 would not 
let me do it in a more elegant way.  I also disabled the openejb itests 
as they fail every time. This failure is due to something outside of 
the multiproject build (i.e. it happens in standalone openejb).  I also 
had to disable the geronimo itests as they use some artifacts from the 
openejb itests.  Hopefully these problems can be worked out and all of 
the test reenabled.  I have verified that the current goals work on Mac 
OS X and Windows.  Anyway, on the the new goals....

The main goals for the new multiproject build are:
m:default or m:build
    Executes default build for all available project modules
m:clean
   Deletes the 'target' directory in all available project modules
m:clean-repo
    Deletes the local repository artifacts of ActiveMQ, Geronimo, HOWL, 
OpenEJB, and TranQL.  NOTE: This may cause problem is you do not have 
the source for the all of the other projects available.

m:rebuild
    Same as m:clean m:default
m:rebuild-all
    Same as m:clean m:clean-repo m:default and it includes 
geronimo-spec modules

m:checkout or m:co
    Checks out ActiveMQ, HOWL, OpenEJB, and TranQL
m:update
    Updates ActiveMQ, Geronimo, HOWL, OpenEJB, and TranQL from cvs/svn 
HEAD

m:fresh-checkout
    BE CAREFUL: Deletes checkout of ActiveMQ, HOWL, OpenEJB, and TranQL 
and checks them out again

In addition to the above we support a -Dmodules command line option 
which is a comma separated list of module names (ie. common, core, ...)

-dain
--
Dain Sundstrom
Chief Architect
Gluecode Software
310.536.8355, ext. 26